Improved ice-cream freezer



SfI-I'. HAMILTON & d. A. ASHTON.

ICE CREAM FREEZER.

No. 36,904. Patented Nov. 11, 1862.

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" El M i] www- Jaw?" I UNITED STATES PATENT OFFICE.

SAMUEL H. HAMILTON AND CHARLES ASHTON O F J ACKSONVILLE, ILL.

IMPROVED ICE-CREAM FREEZER.

Specification forming part of Letters Patent No. 36,904, dated November 11, 1802.

To all whom it may concern.

, Be it known that we, SAMUEL H. HAMILTON and CHARLES A. ASHTON, of Jacksonville, in the county of Morgan and State of Illinois, have'invented a new and Improved Ice-Cream Freezer; and we do hereby declare that the following is a full, clear, and exact description of the same, reference being had'to the accompanying drawings, making a part of this speci-' fication, in which- Figures 1 and 2 arevertical central sections of our-invention, the two planes'of section am:

I parts being so arranged that the heaters and scrapers, either or both, may be rendered in operative when desired or as circumstance may-require.

To enable those skilled in the art to fully understand and construct our invention, we will proceed to describe it. V

A represents the tub of the device, whlch maybe constructed of wood. (Staves bound together by metal hoops.) The tub is provided with a lid or-cover, B, which is fitted snugly in the-top of thetub, and secured in proper position by means of hooks to, or any suitable fastening.

0 represents the cream receptacle, constructed of sheet metaLha-ving a concave bottom, b,and provided with a central pendent journal, 0, which is fitted in a step, d, in the bottom 6 of the tub A, as shown in both figures.

The cream receptacle is provided with a cover or lid, D, which fits snugly upon it, and on the upper surface of the lid D there 15 permanently secured in a-concentric position a.

bevel-wheel, E,which gears into a bevel-wheel, F, of larger diameter than E. The wheel F is placed ona horizontal shaft, G, the bearings f f of which are secured to the lid B of the tub A, the wheel E passing. through a slot, 1n

cream-receptacle G, as shown in Fig. 1. frame Mis connected with the shaft I, so as the lid B, as shown in Fig. 1. By means of this gearing E F a rotary motion is given the cream-receptacle 0 when the shaft G is turned,

the latter being provided at its outer end-with a crank, H, for the purpose of turning it.

I is a vertical shaft, which is placed centrally in the cream-receptacle O, and has its lower end stepped in the center of the bottom 1) thereof. This shaft I passes loosely through the center of the lid D of the creani-reeepta;

cle, and also passes loosely through thecenter v of the wheelE and lid B of the tub A, and has a pinion, J, placed on its-upper end,which. pinion gears into a pinion, K, the axis 9 of which passes vertically into the lidli, as shown in Fig. 1. The pinion J gears into teeth h, which are in the face of the wheel F, and concentric with said wheel, as shown in Fig. 2.

'Thep'inions J K and teeth .h' of wheel F communicate a rotary motion to the shaft I as the shaft G is turned, and in a direction reverse to that of the cream-recepgtacle O, the intermediate pinion, K, producing this result.

' To the shaft I there are attached a series of horizontal heaters, LL. These beaters have an oblique or an inclined position, as shown in Fig. 2, and those heaters L at one side of the shaft I are placed in line with the centers of the spaces between L at the opposite side, as shown in Fig. I.

The shaft I and beaters L L may be composed of a single casting, and should be well .galvanized to prevent oxidation.

On the shaft I there isv placed an upright frame, M, composed of two verticalside pieces,

t i, connected at their upper and lower ends by curved bars j j, through which the shaft I passes loosely. The upper cross-bar, j, rests on a shoulder, j, on the shaft I. The curvatureof the lower crossbar, j, corresponds to the concave form of the bottom I) of the creamreceptacle 0, and it is beveled at each side to form a feather-edge, as shown at k is, Fig. 2., and serves as a scraper. The vertical side pieces, t z, are also beveled to a feather-edge at one side, in order to form side scrapers, the

latter working close to the inner side of the The to turn with it, when-desired, by means of a bolt, a which is placed on the upper cross bar, j, and fits into shaft I.

The operation is as follows: The cream-receptacle O is first placed in'the tub A. The shaft I, with the frame M attached, is then fitted in the cream-receptacle O, and the cream poured into the latter. The lid D is then placed on O, and the tub A filled with ice and salt. The lid B of the tub A is then secured in proper position, and the pinion J fitted on the top of the shaft I. The shaft G is then tn rned in either direction through the medium .of the crank at its outer end, and the cream-' receptacle Ois rotated in one direction and the shaft Iin an opposite direction. The-scrapers t i and j, the latter being the lower crossbar of the frame M, scrape the frozen cream from the side and bottom of C, while the beaters L L lighten up the frozen cream. As the freezing process progresses, and before thescrapers. i i become unduly taxed, the frame M is detached from the shaft I by withdrawing the bolt a and the scrapers are thereby rendered inoperative, and the heaters L L may also be rendered inoperative, when the mass of the cream becomes rigid, by removing the pinion J on shaft I. The cream receptacle 0 will then only rotate to complete the work.

Having thus described our invention, what we claim as new, and desire to secure by Let ters Patent, is

The combination of the rotary cream-receptaclc O and {the rotary beaters L L and frame M, the latter being placed loosely on the shaft I and connected to it by a bolt, a and the cream-receptacle O and shaft I rotated from the driving-shaft G by gearing, arranged as set forth.

S. H. HAMILTON. C. A. ASHTON.

Witnesses:

CHARLES DAULTON, WM. HAMILTON, Sr. 

